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J. W. BROWN.

HYDROCARBUN MOTOR;

APPLICATION FILED NOV. 20. 1916.

Patented Feb, 17, 1920;

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J. W. BROWN.

- HYDROCAHBON MOTOR.

. APPLICATION FILED, NOV. 20, I9I6. 1,330,934.

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Patented Feb. 17, 1920.

NITED STATES PATENT orrro.

JAMES 'W'. BROWN, OLE DETROIT, MICHIGAN, ASSIGNOR T CADILLAC MQ'JJOR CAR COMPANY, OF DETROIT, MICHIGAN. A CORPORATION OF MICHIGAN.

HYDROCABBGN-MUTOB.

Application filed November 20, 1916.

To all whom may concern:

Be it known that I, JAMEs W. BROWN, a citizen of the United States, and resident of Detroit, Wayne county, State of Michigan, have invented certain new and useful Improvements in Hydrocarbon-Motors, of which the following is a specification.

This invention relates to hydrocarbon motors, and particularly to circulating or cooling systems adapted for use therein.

In previously constructed hydrocarbon motor cooling systems especially those provided with thermosensitive devices for regulating the path or the flow of a circulatlng medium, the jacket outlet or thermo-element has either been arranged at the level of the uppermost portion of the cylinder block or the latter has been so connected thereto that liquid is conducted from the highest point in the cylinder block to the thermo element. In the event that there is not suflicient circulating liquid within such a system to raise its level to the uppermost portion or the top of the cylinder block, a steam pocket will be formed therein and no liquid will conduct the heat from the cylinder block to the thermostat for regulating the circulation through the block.

In previously constructed hydrocarbon motor cooling systems comprising a cylinder jacket having an inlet port, an outlet port, connections therebetween comprising a radiator and another connection or bypass independent of the radiator, with a then mostat either located at the level of the uppermost portion of the block; or where it will be fed by water flowing through the bypass from the uppermost portion of the cylinder block under certain conditions, the

thermostat being provided with means adapted to retard or totally out oii" the circulation of the cooling medium through the radiator when the temperature goes below a predetermined limit, it has been "found that when the temperature within the jacket goes above this limit after the circulation through the radiator has been cut off wlth the supply of cooling medium so diminished that there is not sufficient to maintain its level up to the uppermost portion of the block, a steam pocket will form in the upper part of the jacket and no water will flow from the jacket. The result of such condition is that the motor is very likely to ab normally overheat without causing the ther- Specification of Letters Yatent.

Patented Feb. 1'17, 1920.

Serial No. 132,433.

mostat to permit circulation of the liquid from the radiator to the motor.

To obviate these and other diiiiculties, I have provided a system in which the jacket outlet port is arranged at a point intermediate its uppermost and lowermost portions. With this arrangement my cooling system will function properly even though the level of the cooling liquid therein drops considerably below its normal level. I am also enabled, by my improved means, to actuate my thermo-element by the mean temperature within the jacket instead of by the maximum temperature.

These and other objects and results will appear from the following description taken in connection with the drawings, which form a part of this specification, and in which:

Figure 1 is a side elevation of a hydrocarbon motor power plant comprising an embodiment of this invention;

Fig. 2 is a front elevation of the construction illustrated in Fig. 1 with the radiator moved and other portions broken away;

Fig. 8 isa horizontal section substantially on the line 33 of Fig. 2;

Fig. 4 is a vertical section substantially on the line 4% of the same regulator and pump mechanism shown in Fig. 2; and

Fig. 5 is a rear elevation of the upper part of the radiator shown in Fig. 1. I

Referring to the drawings, 10 represents the crank case; 11 and 12 a plurality of cylinder blocks suitably mounted thereon in V relation. Each of the cylinders is provided with the usual piston 13, connecting rod 14L and valve mechanism 15, the latterbeing adapted for operation from a cam shaft 16 through a suitable rocker arm 17.

' The usual crank shaft 18 is mounted in the crank case 10. A shaft 19 arranged tran verse to the crank shaft and adapted to be driven therefrom through a pair of gears 20 and 21, may be mounted in suitable bearings 22, arranged in the crank case 10. This shaft is adapted to drive a plurality of pump mechanisms arranged adjacent each end thereof in a manner more particularlv described in detail hereinafter.

The cylinder jacket 23 of each of the cylinder blocks 11 and 12, respectively, is provided with an intake port 24 formed adjacent its lowermost portion and with an outlet or discharge port 25 adjacent its uppermost portion. Independent conduits 26 are arranged between the jacket outlet ports 25 and the common inlet 27 at the upper portion ofthe radiator 28. Another pair of radiator outlet ports 30, with an inlet port 31, is formed in a valve chamber 32 of each of the pump mechanisms. It will be noted that the valve chamber 32 is formed on a cover plate 33, secured as by bolts 3% to a pump chamber 35, which is secured as by bolts 36 to the side of the crank case 10. A pump shaft 37 having a tongue and groove connection. 38 with one end of the transverse shaft 19 is mounted in suitable bearings39 in the pump chamber 35. in impeller L0 may be suitably secured as by a pin 41 to the shaft 37 A conduit #22 is arranged between a pump outlet 43 and the jacket inlet port 24. It will be noted that i the forward and rearward ends of the cylinder jackets are provided with detachable plates 44 and tt. The plate A is pro vided with an outlet port 45, which is located, when the plate is assembled, in a posi-- tion intermediate the uppermost and lewermost portions of the cylinder jacket 23. bypass conduit 46 connects the port as l a cover plate 47, secured as by bolts e the valve chamber 32.

A carbureter and gas intake i9, which is arranged between the cylinder blocks, is provided with a jacket 50, having inlet ports 51 connected as by a conduit 52 to the upper portion 53 of the jacket. The intake jacket is also provided with outlet ports 54, connected as by conduits 55 with the chamber cover 4:7, as at 56.

Thermostat elements 57, which may be of the vapor pressure type, are arranged in the chamber or cover 32, having their downwardly extending stems 58, suitably auchored to the tubular portions 59 of the chamber 32. The chamber 32 is provided with an interiorly arranged cage 60, hav'ng upper and lower ports 61 and 62, respectively. A double balanced valve member 63, for controlling the ports 61 and 62, may be secured to the upper end of the thermostat 57, as by threads 64:.

It will be understood that when the temperature of the circulating medium drops below a predetermined limit the tubular thermostat 57 will contract, and finally seat the Valve member 63 on the ports 61 and 62, thereby entirely cutting off the flow of liquid from the radiator 28 to the circulating s term, as illustrated particularly in Figs. 2 and 4:. With the parts in the positions illustrated, the circulation through each jacket will be as follows:

From the pump outlet l3 through the conduit 42, jacket inlet port 24, outlet port 45, bypass 4: 6 and inlet port 65 into the chamber 32' and down past the thermostat 57 to the pump inlet. l/Vhen the temperature within the jacket rises above that for system, the parts will function and operate as described without change until the level of the circulating liquid drops below the outlet port 4-5.

While I have described and will specifically claim what I deem to be a preferred embodiment of my invention, it will be obious to those skilled in the art that various modifications and changes may be made without departing from the spirit and scope hereof.

Having thus described my invention, what 1 claim and desire to secure by Letters Patent is:

l. in an internal combustion engine and in combination with a cooling jacket having inlet and outlet ports located at diiferent levels one above the other, and a cooling device connected with said ports; a second outlet port leading from said cooling jacket at a point between the uppermost and lowermost portions thereof; a conduit leading from said second. outlet port; and m ans for controlling the flow of cooling fluid through said conduit.

2. in an internal combustion engine, the combination with a cylinder, and a jacket therefor provid d with an inlet port and an outlet port, of connections between said ports whereby a temperature controlling medium is fed into said jacket at a comparatively low portion thereof, and discharged therefrom at a point below the combustion chamber of the cylinder; and means for controlling the flow of temperature controlling medium liowing through said connections.

in an internal combustion engine, the combination with a cylinder and a jacket therefor, means for feeding a temperature regulating medium to said jacket, of a return from said jacket to said means, said return being adapted to take the cooling medium from said jacketat a point below the combustion chamber of the cylinder, and an automatically controlled "valve fort-om trolling the iiow of temperature regulating medium through said return. V *7 l. in an internal combustion engine, the combination with a cylinder, a acket thcrefor provided with an intake port and an outlet port, and a connection between said ports, comprising a radiator, of a conduit through which all the temperature controlling fluid flow for said cvlinder may pass and connecting said jacket. at a noint below said outlet port, with said intake port, in-

dependently of said radiator, and means for controlling the flow of. temperature controlling fluid through said conduit.

5. In an internal combustion engine, the combination with a cylinder, a jacket therefor provided with an intake port and an outlet port, and a connection between said ports, comprising a radiator, of a conduit connecting said jacket, at a point below said outlet port, with said intake port, independently of said radiator, and a valve mechanism in one of the said connections controlling the flow of temperature regulating fluid through both.

6. In an internal combustion engine, the combination with a cylinder, a jacket there for provided with an intake port and an outlet port, and a connection between said ports, comprising a radiator, of a conduit connecting said jacket, at a point below said outlet port, with said intake port, independently of said radiator, and a valve mechanism for controlling the circulation through said connections.

7. In an internal combustion engine, the combination with a cylinder, a jacket therefor provided with an intake port and an outlet port, and a connection between said ports, comprising a radiator, of a conduit connecting said jacket, at a point below said outlet port, with said intake port, independently of said radiator, a valve mechanism in one of said connections, and thermo-sensitive means for actuating said mechanism.

8. In an internal combustion engine, the combination with a cylinder, a jacket therefor having an inlet port and an outlet port, a cooling device and connections between said device and said ports, of a bypass around said cooling device, said bypass being connected with said jacket at a point below its uppermost portion, a valve mechanism for regulating the circulation through either said bypass or said cooling device, and ther mo-sensitive means for operating said mechanism, said latter means being subject to temperature of the liquid flowing through said bypass.

9. In an internal combustion engine, the combination with a cylinder, a jacket therefor having an inlet port and an outlet port, a cooling device, connections between said device and said ports, of a bypass around said. cooling device, said bypass being connected with said jacket at a point below its uppermost portion, a valve, mechanism for regulating the circulation through either said bypass or said cooling device, and thermosensitive means for operating said mecha nism, said latter means being subject either to temperature of the liquid flowing through said bypass only, or through said cooling device only, or by the temperature of the mixed liquid flowing from said bypass and said cooling device,

10. In an internal combustion engine, the combination with a cylinder, a acket therefor having an inlet port and an outlet port, and connections comprising a radiator between said ports, of a bypass around said radiator, said bypass being connected with said jacket at a point intermediate said inlet and outlet ports, interconnected valve mechanisms for regulating the circulation through said bypass and radiator, respectively, and thermosensitive means for operating said valve mechanisms arranged where it will be affected by the temperature of the cooling medium circulating through said system, independently of the position of said valve mechanisms.

11. In an internal combustion engine, the combination with a cylinder, a jacket therefor having an inlet port and an outlet port, a radiator, and connections between said ports and said radiator, of a bypass around said radiator, having a connection with said jacket at a point intermediate said ports, means for circulating cooling medium through said jacket, a valve mechanism for controlling the path of circulation through said connections, and thermo-sensitive means for operating said mechanism.

In an internal combustion engine, the combination with a cylinder, a jacket therefor having an inlet port and an outlet port, a cooling device, and connections between said cooling device and said ports; of a by pass around said cooling device, said bypass having a connection with said jacket, independently of said outlet port and means for varying the amounts of cooling medium flowing, respectively, through said cooling device and through said by-pass.

13. In an internal. combustion engine, the combination with a cylinder, a jacket therefor having an inlet port and an outlet port,

a radiator provided with an inlet port and an outlet port, said radiator inlet port being arranged above said jacket outlet port, and connections between said ports, whereby cooling medium may be circulated through said jacket and said radiator; of a bypass around said radiator connected with said jacket at a point below said jacket outlet port and means for controlling the flow of cooling medium through said by-pass.

M. In an internal combustion engine, the combination with a cylinder, a jacket therefor, provided with an intake port and an outlet port, a radiator, and connections between the same and said ports; of a bypass around said radiator, said by-pass being connected with said jacket at a point at which the cooling medium within said jacket is cooler than at said outlet port and means for varying the quantities of cooling medium flowing respectively through said radiator and through said by-pass.

15. In an internal combustion engine, the

combination with a cylinder, a jacket therefor provided with an intake port and an outlet port, a radiator, and connections between the same and said ports, of a bypass around said radiator, said bypass being connected with said jacket at a point which is cooler relatively to said outlet port, valve mechanisms for controlling the relative circulation in said bypass and said radiator, respectively, and thermo-sensitive means for operating said valve mechanisms.

16. In an internal combustion engine, the combination with a cylinder, of a cooling system therefor comprising a jacket having an inlet port and an outlet port, a plurality of main circulating paths connecting said ports, said paths comprising a radiator, and a bypass around the radiator, said bypass being connected with said jacket at a point which is cooler relative to said outlet port, a valve mechanism for regulating the relative circulation in said bypass and radiator, respectively, and thermo-sensitive means for operating said valve mechanism.

l7. In an internal combustion engine, the combination with a cylinder, a jacket therefor having'an inlet port and an outlet port, a cooling device, connections between said cooling device and said ports, a fuel intake, and a jacket therefor; of a bypass around said latter jacket and said cooling device, respectively, said bypass being connected with said first jacket at a point substantially below its uppermost portion and automatically operating means for controlling the flow of cooling medium through said by-pass.

18. In an internal combustion engine, the combination with a cylinder, a acket therefor having an inlet port and an outlet port, a coolin device, connections between said cooling device and said ports, a fuel intake,

and a jacket therefor, of a bypass around said latter jacket and said cooling device, respectively, said bypass being connected with said first jacket at a point substantially below its uppermost portion, and a valve mechanism for regulating the relative circulation insaid bypass and said cooling device, respectively.

19. In an internal combustion engine, the combination with a cylinder, a jacket there for having an inlet port andan outlet port,

a cooling device, connections between said cooling device and said ports, a fuel intake, and a jacket therefor, of a bypass around said jacket and cooling device, respectively, said bypass being connected with said jacket at a point substantially below its uppermost portion, a valve mechanism for regulating the relative circulation in said bypass and said cooling device, respectively, and thermo-sensitive means for operating said valve mechanism.

20. In an internal combustion engine, the combination with a cylinder, a jacket therefor provided with an intake port and an outlet port, said latt r port being formed in the upper portion, adjacent one end thereof, a radiator, and connections between said radiator and said ports; of a bypass around said radiator, said bypass being connected with said jacket, at the end thereof adjacent which the outlet port aforesaid leads therefrom, and at a point substantially below the uppermost portion of the same.

21. In an internal combustion engine, the con'ibination with a cylinder, a jacket therefor provided with an intake port and an outlet port, said latter port being formed in the upper portion, adjacent one end thereof, a radiator, and connections between said radiator and said ports, of a bypass around said radiator, said bypass being connected with said jacket, at said end, at a point substantially below the said outlet port, and a valve device for controlling the relative circulation through said radiator and said bypass.

22. In an internal combustion engine, the combination with a cylinder, a jacket therefor provided with an intake port and an outlet port, said latter port being formed in the upper portion, adjacent one end thereof, a radiator, and connections between said radiator and said ports, of a bypass around said radiator, said bypass being connected with said jacket, at said end, at a point substantially below the said outlet port, a valve device for controlling the relative circulation through said radiator and said bypass, and a thermo-sensitive device for 1, l eratlng sald valve device.

In testimony whereof I atlix mv signature.

muss W. Brown. 

